Mobile terminal for unlocking a touchscreen and controlling method thereof

Abstract

A mobile terminal including a wireless communication unit configured to provide wireless communication; a touchscreen configured to receive a touch input; and a controller configured to partition the touchscreen into a first display region and a second display region, when the touchscreen is in a locked state and is touched with a first pointer and a second pointer, reduce sizes of the first and second display regions when the first and second pointers are dragged in opposite directions, and unlock the touchscreen or display a password input object for unlocking the touchscreen based on whether a password for unlocking the touchscreen is set, when a moving distance of at least one of the first and second pointers is greater than a preset moving distance or a size of at least one of the first and second display regions is smaller than a preset size.

What is claimed is: 
     
       1. A mobile terminal comprising:
 a wireless communication unit configured to provide wireless communication; 
 a touchscreen configured to receive a touch input; and 
 a controller configured to: 
 partition the touchscreen into a first display region and a second display region, when the touchscreen is in a locked state and is touched with a first pointer and a second pointer, 
 reduce sizes of the first and second display regions when the first and second pointers are dragged in opposite directions, 
 unlock the touchscreen or display a password input object for unlocking the touchscreen based on whether a password for unlocking the touchscreen is set, when a moving distance of at least one of the first and second pointers is greater than a preset moving distance or a size of at least one of the first and second display regions is smaller than a preset size, 
 output a video played recently when the first and second pointers move in a first direction, and 
 output a photo played recently when the first and second pointers move in a second direction opposite to the first direction. 
 
     
     
       2. The mobile terminal of  claim 1 , further comprising:
 a fingerprint recognition sensor underlying the touchscreen, and configured to receive an input of a fingerprint from a user, 
 wherein the password input object includes a fingerprint input window configured to input the fingerprint. 
 
     
     
       3. The mobile terminal of  claim 2 , wherein the controller is further configured to:
 when the touchscreen is touched with the first and second pointers, display a first home screen, which is to be output if the touchscreen is unlocked, or the password input object by overlaying a lock screen output by the touchscreen. 
 
     
     
       4. The mobile terminal of  claim 1 , further comprising:
 a camera, 
 wherein the password input object includes a preview image input through the camera. 
 
     
     
       5. The mobile terminal of  claim 4 , wherein the controller is further configured to unlock the touchscreen when the preview image includes a face of a registered user. 
     
     
       6. The mobile terminal of  claim 1 , wherein the password input object includes at least one of a plurality of figure objects for drawing a pattern and a virtual keypad for inputting text. 
     
     
       7. The mobile terminal of  claim 1 , wherein the controller is further configured to:
 display a third display region between the first and second display regions as the sizes of the first and second display regions are reduced, and 
 display at least one portion of a first home screen, which is to be output when the touchscreen is unlocked, on the third display region or display at least one portion of the password input object on the third display region. 
 
     
     
       8. The mobile terminal of  claim 1 , wherein while the mobile terminal is operating in a landscape mode and the touchscreen is unlocked, the controller is further configured to display a first home screen on the touchscreen, and
 wherein while the mobile terminal is operating in a portrait mode and the touchscreen is unlocked, the controller is further configured to display a second home screen on the touchscreen. 
 
     
     
       9. The mobile terminal of  claim 1 , wherein the touchscreen includes a first touch region and a second touch region. 
     
     
       10. The mobile terminal of  claim 9 , wherein the controller is further configured to unlock the touchscreen and display a first home screen when initial touch positions of the first and second pointers are located within the first and second touch regions, respectively. 
     
     
       11. The mobile terminal of  claim 10 , wherein the controller is further configured to unlock the touchscreen and display an active screen of a first application if the initial touch positions of the first and second pointers are located within the first touch region. 
     
     
       12. The mobile terminal of  claim 11 , wherein the controller is further configured to unlock the touchscreen and display an active screen of a second application when the initial touch positions of the first and second pointers are located within the second touch region. 
     
     
       13. The mobile terminal of one of  claim 12 , wherein the controller is further configured to:
 display a third display region between the first and second display regions as the sizes of the first and second display regions are reduced, and 
 display at least one of information on the first application and information on the second application on the third display region. 
 
     
     
       14. The mobile terminal of  claim 1 , wherein the controller is further configured to unlock the touchscreen and output a content played recently when the first and second pointers are dragged over a prescribed distance in a prescribed direction by maintaining an equal spaced distance. 
     
     
       15. The mobile terminal of  claim 1 , wherein the controller is further configured to output feedback to indicate that the touchscreen will be unlocked when a moving distance of at least one of the first and second pointers is greater than a preset moving distance or a size of at least one of the first and second display regions is smaller than a preset size. 
     
     
       16. A method of controlling a mobile terminal, the method comprising:
 partitioning, via a controller of the mobile terminal, a touchscreen into a first display region and a second display region, when the touchscreen is in a locked state and is touched with a first pointer and a second pointer; 
 reducing, via the controller, sizes of the first and second display regions when the first and second pointers are dragged in opposite directions; 
 unlocking, via the controller, the touchscreen or displaying a password input object for unlocking the touchscreen based on whether a password for unlocking the touchscreen is set, when a moving distance of at least one of the first and second pointers is greater than a preset moving distance or a size of at least one of the first and second display regions is smaller than a preset size; 
 outputting a video played recently when the first and second pointers move in a first direction; and 
 outputting a photo played recently when the first and second pointers move in a second direction opposite to the first direction. 
 
     
     
       17. The method of  claim 16 , further comprising:
 receiving, via a fingerprint recognition sensor underlying the touchscreen, an input of a fingerprint from a user, 
 wherein the password input object includes a fingerprint input window configured to input the fingerprint. 
 
     
     
       18. The method of  claim 16 , wherein the password input object includes a preview image input through a camera of the mobile terminal. 
     
     
       19. The method of  claim 18 , further comprising:
 unlocking the touchscreen when the preview image includes a face of a registered user.